LINAC2026 - 33rd Linear Accelerator Conference

Session

TH1A - Invited Talks

TH1A

20 Aug 2026, 08:30

2F Grand Ballroom (Daejeon Convention Center)

32. 25 years of FEL operation at FLASH (DESY) (TH1A001)

Katja Honkavaara (Deutsches Elektronen-Synchrotron DESY)

20/08/2026, 08:30

MC2.A04: FELs

Invited Talk (Invitation Only)

First SASE lasing at DESY's FLASH Free-electron laser (FEL) - that time called as TESLA Test Facility FEL - was in February 2000. It was the first FEL worldwide producing SASE radiation at VUV wavelengths. Since then, over more than two decades, FLASH has provided high peak and average brilliance XUV and soft X-ray FEL radiation for photon science experiments.

In order to operate FLASH as...

87. Compact and efficient CW electron LINACs for industrial and environmental applications (TH1A002)

Robert Rimmer (Thomas Jefferson National Accelerator Facility)

20/08/2026, 08:50

MC2.A05: Industrial and medical accelerators

Invited Talk (Invitation Only)

Compact, efficient and high-power sources of electrons are of growing interest for a wide range of applications including materials processing, medical device and food sterilization, wastewater and soil treatment. Electron energy from <1MeV to 10 MeV and beam power from kW to MW levels are desirable. We describe a compact modular system being developed at JLab starting with a gridded...

6. Intrabeam Scattering and 6D Brightness: Modelling, Measurement, and the Road to a Brighter SwissFEL electron source (TH1A003)

Thomas Lucas (Paul Scherrer Institute)

20/08/2026, 09:10

MC1.A02 Electron and ion sources, guns, photo injectors, charge breeders

Invited Talk (Invitation Only)

Intrabeam scattering (IBS) in the SwissFEL injector has emerged as a critical performance-limiting phenomenon, manifesting as a significantly larger slice energy spread than previously anticipated. By combining detailed numerical simulations with a newly developed analytical model, we achieve excellent agreement with experimentally measured slice energy spreads, validating our approach. These...

96. Technical commissioning of the ESS linac cavities for the Beam on Dump Phases (TH1A004)

Marten Koopmans (European Spallation Source)

20/08/2026, 09:30

MC4.A07: Room temperature RF

Invited Talk (Invitation Only)

The ESS linac has been commissioned in two different operation phases operation on the 12 kW commissioning beam dump. In 2025 the linac was operated at full duty cycle in the NCL section (up to 90 MeV) and at reduced duty cycle in the SCL section (up to 870 MeV), due to limitations in the cooling infrastructure and staged implementation of LLRF functionalities. In the present phase the whole...

41. Status of the CiADS Linac (TH1A005)

Yuan He (Institute of Modern Physics, Chinese Academy of Sciences), Zhijun Wang (Institute of Modern Physics, Chinese Academy of Sciences)

20/08/2026, 09:50

MC3.A02: Ion linac projects

Invited Talk (Invitation Only)

IMP is constructing two major projects near Huizhou. Both involve the installation of superconducting hadron linacs with equipment that has been developed by IMP over the last decade or more. The presentation should summarize progress on the two projects.

78. Progress in the LIPAc Validation and the roadmap towards SRF Linac Beam Commissioning (TH1A006)

Keitaro Kondo (National Institutes for Quantum Science and Technology)

20/08/2026, 10:10

MC3.A02: Ion linac projects

Invited Talk (Invitation Only)

The Linear IFMIF Prototype Accelerator (LIPAc), jointly developed by Europe and Japan, aims to validate the acceleration of a 125 mA deuteron beam in continuous‑wave operation up to 9 MeV. In the 2024 campaign, LIPAc achieved a major milestone by demonstrating high‑duty RFQ operation with a 119 mA deuteron beam and a duty cycle approaching 10%, marking the highest‑performance operation to...